摘要
本文探讨了和田石榴叶片主要矿质元素含量变化趋势,为平衡施肥奠定基础。以新疆和田地区皮山县以9、13年树龄"皮亚曼"石榴树为采样对象,在开花展叶期、花芽分化期、和果实膨大期定位采集叶片,分析叶片中的N、P、K、Ca、Mg、B等元素含量变化。结果表明,从开花展叶期到花芽分化期,9年生石榴树叶片中N含量呈先升后降趋势,13年生石榴树叶片中N含量持续下降;叶片中P含量均呈"反抛物线"状态;K含呈下降趋势,Ca、Mg含量持续增高;9年生石榴树叶片中B的含量呈下降趋势,而13年生叶片中B的含量呈先升后降趋势。本研究表明,树龄、生长时期等的不同,会对石榴叶片主要矿质元素含量产生影响。
In this paper,the mineral elements content changes trend of pomegranate leaves in Hetian was investigated to lay a foundation for balanced fertilization. The leaf samples from Pyaman pomegranate of 9 and 13 year of Pishan country were collected in bloom and leaf period,bud differentiation period and developing fruit period,and their contents of organic matter and nutrient element（ N,P,K,Ca,Mg,B）were analyzed. The results showed that N content raised at first,then decreased in 9 year＇s pomegranate leaves and was a sustained downward trend in 13 year＇s pomegranate leaves; P content of pomegranate leaves was an anti-parabola trend; K content was a downward trend,Ca and Mg content increased continuously; B content was a downward trend in 9 year＇s pomegranate leaves,increased first,and then decreased in 9 year＇s pomegranate leaves. Different elements of tree age and growth period would affect the leaf mineral content.
出处
《西南农业学报》
CSCD
北大核心
2015年第6期2661-2665,共5页
Southwest China Journal of Agricultural Sciences
基金
新疆自治区林业科技专项"新疆特色林果葡萄测土配肥技术平台建设"(2012-2015)
关键词
和田
石榴
矿质元素
叶片分析
Hetian
Pomegranate
Mineral elements
Leaf analysis
